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Home >> Acura >> 2013 >> TL Base >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission >> DTC Troubleshooting >> DTC P0705: Short in Transmission Range Switch Circuit (Multiple Shift-Position Input)

DTC P0705: Short in Transmission Range Switch Circuit (Multiple Shift-Position Input)

NOTE:
  • Before you troubleshoot, record all freeze data and any on-board snapshot with the HDS, and review the General Troubleshooting Information (see GENERAL TROUBLESHOOTING INFORMATION  ).
  • This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission.
  1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
  2. Compare the ATPP, ATPR, ATPN, ATPD, ATPS, ATPFWD, and ATPRVS inputs with the HDS to the following table, in each shift lever position.
      ATP P ATP R ATP N ATP D ATP S ATP FWD ATP RVS
    P  ◦ X X X X X X
    R  X ◦ X X X X ◦
    N  X X ◦ X X X X
    D  X X X ◦ X ◦ X
    S  X X X X ◦ ◦ X
    ◦: ON
    X: OFF

    Do the transmission range switch signals match? 

    YES  - Intermittent failure, the system is OK at this time.

    NO  - Go to step 3.

  3. Compare the ATPP, ATPR, ATPN, ATPD, ATPS, ATPFWD, and ATPRVS inputs with the HDS to the table in step  2, in each shift lever position.

    Are any transmission range switch signals ON in all shift lever positions? 

    YES  - Go to step  9.

    NO  - Record the input that did not indicate ON, then go to step 4.

  4. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
  5. Disconnect the transmission range switch connector.
  6. Connect the transmission range switch connector terminal which incorrectly indicates ON in step  3 to body ground with a jumper wire.
  7. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
  8. Compare the ATPP, ATPR, ATPN, ATPD, ATPS, ATPFWD, and ATPRVS inputs with the HDS to the table in step  2.

    Do multiple transmission range switch signals indicate ON? 

    YES  - Repair a short in the wires between the transmission range switch and the PCM, refer to the following table.

    NO  - Replace the transmission range switch (see TRANSMISSION RANGE SWITCH REPLACEMENT ).

      ATP P ATP R ATP N ATP D ATP S ATP FWD ATP RVS
    PCM A16 C25 C26 C17 C46 C18 C19
    Transmission Range Switch 7 8 4 9 10 5 1
  9. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
  10. Disconnect the transmission range switch connector.
  11. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
  12. Check the transmission range switch signal that remained ON with the HDS.

    Does any transmission range switch signals remain ON? 

    YES  - Go to step 13.

    NO  - Replace the transmission range switch (see TRANSMISSION RANGE SWITCH REPLACEMENT  ).

  13. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
  14. Check for continuity to body ground in the circuit that remained ON in step  2.

    Does the circuit that indicated ON have continuity to ground? 

    YES  - Repair a short to body ground in the wire between the corresponding transmission range switch connector terminal and the PCM.

    NO  - Update the PCM if it does not have the latest software (see ECM/PCM UPDATE ). If the PCM was updated, replace the PCM (see ECM/PCM REPLACEMENT ).

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